scholarly journals Comparatory identification of taxonomy of automated control system in sea ports

Author(s):  
Alexander Aleksandrovich Zheleznyak ◽  
Vladimir Alekseevich Dorovskoy

The article considers a corporate taxonomy concept as a hierarchical classification of organization or administration, a form of organizing data (documents, digital assets, etc.). There is given the idea of the corporate taxonomy of seaports, branched hierarchy of concepts, objects and subjects of ports, extracted from the hidden knowledge of unstructured textual information and studied for the classification of electronic documents and other sources of information. It has been stated that one of the highest forms of human intellectual activity is understanding and extracting semantic units with their organization into a hierarchical structure. The most convenient and effective method of indirect identification is the method of comparative identification, which deductively uses the basic provisions of the theory of intelligence. There are considered processes of data processing in organizational information systems, surjective imaging, where each element of the value domain has at least one prototype. A system of logical equations showing the regularities of signal processing is given. The logical scheme of using the method of comparative identification for extracting non-obvious knowledge is illustrated. To compile the corporate taxonomy it is necessary to identify classes of conditional equivalence (in addition to classes of unconditional equivalence) that contain groups of close semantic units and have common features that will be grouped into one taxon. The descriptors of lexical units are presented. It has been inferred that the method of comparative identification used to create the corporate taxonomy allows to move from the subjective perception of meanings to the objective relationship between the documents in the automated system of seaports and the semantic units represented by keywords, headings, etc.

In automated control systems for technical processes, the conversion of a continuous signal into a digital code and vice versa from a digital code to a continuous (analog) value is widely used. For direct type converters often used the term ADC, the reverse - DAC. The characteristics of the converters often dramatically affect the parameters of the entire automated system. The importance of the correct choice of ADCs and DACs has especially increased recently in connection with the mass introduction of microcontrollers MC. Indeed, in addition to the ADC and DAC, it is necessary to place the processor core in the microcontroller's crystal, I/O interfaces and many other elements necessary for the functioning of the MC. The use of information converters in the construction industry imposes additional requirements on converters: for example, in building monitoring systems, precision ADCs with extremely high accuracy are often required (while performance may be low), in other applications it is necessary to provide the necessary parameters at a high level of industrial interference, etc. This article explores issues related to the rational choice of ADCs and DACs, taking into account current trends in the IT field and the specifics of work in the construction industry. Sigma-Delta converters are noted as the most promising models of direct type converters.


The variants of the division of the life cycle of a construction object at the stages adopted in the territory of the Russian Federation, as well as in other countries are considered. Particular attention is paid to the exemplary work plan – "RIBA plan of work", used in England. A feature of this document is its applicability in the information modeling of construction projects (Building information Modeling – BIM). The article presents a structural and logical scheme of the life cycle of a building object and a list of works that are performed using information modeling technology at various stages of the life cycle of the building. The place of information models in the process of determining the service life of the building is shown. On the basis of the considered sources of information, promising directions for the development of the life cycle management system of the construction object (Life Cycle Management) and the development of the regulatory framework in order to improve the use of information modeling in construction are given.


2020 ◽  
Vol 2020 (4) ◽  
pp. 40-52
Author(s):  
Aleksey Beleychenko ◽  
Vladimir Averchenkov

This research examined the problems of the tourism sector of the economy, that was described from the perspective of potential informatization. The features of the tourism industry functioning were reflected, some proposals were put forward regarding the design and development of an automated management system, and the geographical affiliation of the research areas were indicated. The tourist and recreational complex was proposed to understand as a separate component of the tourism industry, and was accordingly accepted as the object for the projected automated system. The authors had refined the formulation of the term "tourist and recreational complex" as a complex socio-economic system based on the problems and possibilities of it’s informatization. Sufficient attention was paid to the identification of the characteristic features of the tourist and recreational complex, to the designation and addition of its functions, to the possibilities and difficulties of formalization. Some features and problems of the designing an automated control system were described in this research, there were also suggests about its conceptual structure, and outlines the for further research. Special attention was paid to the developing of the automated system for managing the tourist and recreational complex, based on the requests, needs and capabilities of its three main groups of users: regional (district) management, business and guests (tourists, recreants).


Author(s):  
Boris F. ZARETSKIY ◽  
Arkadiy S. GUZENBERG ◽  
Igor A. SHANGIN

Life support for first manned spaceflights was based on supplies of consumables. Crew life support systems based on supplies of water and oxygen, in spite of their simplicity, are extremely inefficient in orbital space missions and are unfeasible in deep space missions because of mass and volume constraints. Therefore, there are currently developed and are to be used on space stations the life support systems that are based on chemical and physical regeneration of water and oxygen extracted from human waste. In view of further advances in long-duration orbital stations, and the prospects of establishment of planetary outposts and deep space exploration, the problem of constructing an automated system for controlling a suite of regenerative LSS becomes urgent. The complexity of solving the problem of constructing an efficient control system in this case owes to the existence of a large number of effectiveness criteria. The paper proposes a system of consolidated global efficiency criteria, which allows to break up this problem into a series of sub-problems of optimization in order to solve this problem. The proposed criteria are longevity, cost, comfort. The paper presents a series of specific examples of using the proposed principles with necessary generalizations. Key words: space life support systems, atmosphere revitalization equipment, automated control system, global generalized efficiency criteria, longevity, cost, comfort.


Sensors ◽  
2014 ◽  
Vol 14 (6) ◽  
pp. 11204-11224 ◽  
Author(s):  
Atena Fekr ◽  
Majid Janidarmian ◽  
Katarzyna Radecka ◽  
Zeljko Zilic

2008 ◽  
Vol 1 (1) ◽  
pp. 67 ◽  
Author(s):  
Matthew N Davies ◽  
Andrew Secker ◽  
Mark Halling-Brown ◽  
David S Moss ◽  
Alex A Freitas ◽  
...  

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